Skylark V6-173 2.8L VIN X 2-bbl (1984)
PROM - Programmable Read Only Memory: Description and Operation
CALPAK
CAUTION:
If the computer is found to be defective and needs replacement, remove the old CALPAK and PROM, then place both into the replacement
computer. When replacing the COMPUTER always transfer the BROADCAST CODE and PRODUCTION ECM/PCM NUMBER to the service
label on the replacement computer.
DESCRIPTION:
The resistor network calibration called a CALPAK is located inside the computer. Its appearance and service is similar to the PROM. The
CALPAK allows fuel to be delivered if other parts of the computer fail. The CALPAK provides the computer with calibrations for:
^
Cold Start Cranking.
^
Limp home fuel (fuel backup mode).
